Invention Grant
- Patent Title: Tunneling magnetic sensing element including non-magnetic metal layer between magnetic layers
- Patent Title (中): 隧道磁感应元件包括磁性层之间的非磁性金属层
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Application No.: US11671756Application Date: 2007-02-06
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Publication No.: US07787221B2Publication Date: 2010-08-31
- Inventor: Ryo Nakabayashi , Kazumasa Nishimura , Yosuke Ide , Yoshihiro Nishiyama , Hidekazu Kobayashi , Masamichi Saito , Naoya Hasegawa
- Applicant: Ryo Nakabayashi , Kazumasa Nishimura , Yosuke Ide , Yoshihiro Nishiyama , Hidekazu Kobayashi , Masamichi Saito , Naoya Hasegawa
- Applicant Address: JP Tokyo
- Assignee: Alps Electric Co., Ltd.
- Current Assignee: Alps Electric Co., Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Brinks Hofer Gilsn & Lione
- Priority: JP2006-354993 20061228
- Main IPC: G11B5/33
- IPC: G11B5/33
Abstract:
A first pinned magnetic sublayer 4a has a multilayered structure including a first insertion subsublayer disposed between a lower ferromagnetic subsublayer and an upper ferromagnetic subsublayer. The first insertion subsublayer has an average thickness exceeding 3 Å and 6 Å or less. This results in an interlayer coupling magnetic field Hin lower than a known art while RA and the rate of resistance change (ΔR/R) substantially identical to those of the known structure are maintained.
Public/Granted literature
- US20080158738A1 TUNNELING MAGNETIC SENSING ELEMENT INCLUDING NON-MAGNETIC METAL LAYER BETWEEN MAGNETIC LAYERS Public/Granted day:2008-07-03
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